Adding and multiplicating machine.



PATENTED 0021?. 23, 1906. s. DE GOMIVLA. ADDING AND MULTIPLIGATING MACHINE.

APPLICATION FILED MAY9,19( )5.

3 SHEETSSHEBT 1.

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1H $140M Oh No. 883,960. PATENTED 0011.23, 1906.

. s. DE GOMILA.

ADDING AND MULTIPLIOATING MACHINE.

APPLIUATION FILED MAY 9, 1905. D

3 SHEETS-SHEET 2.

PATENTED OCT. 23, 1906. S. DE GOMILA. ADDING AND MULTIPLICATING MACHINE.

APPLIOATION FILED MAY 9, 1905.

3 SHEETS-SHEET 3.

To all whom, it may concern:

UNITED STATES rn'rnn r enrich.

SALVADOR D E GO MILYA, OF MALAGA. SPAIN.

ADDING AND MULTiFLECATlNG MACHlNE.

Speeifieation of Letters Patent.

Patented Oct. 23, 1906.

Be it known that I, SALVADOR DE GOMILA, a subject of the King of Spain, residing at Mala-ga, Kingdom of S ain, have'invented certain new and useful mprovements in an Adding and Multiplicating Machine, of

' which the following is a full, clear, and exact description. I

My invention relates to a machine by which adding and multiplying of numbers may be performed.

My improved machine is shown in the annexed drawings, in which Figure 1 is the vertical cross-section through the machine on the line A. B of Fig. 2. Fig. 2 is a front elevation of the machine, the upper. part of which is partly broken away. Fig. 3 is a plain view of the machine, the cover of the casing including the. mechanism of the machine being broken away. Fig. 4 shows a detail of the machine on enlarged scale. Fig. 5 is a front view of a modified form of the number-wheels and the wheel coacting with said number wheels. Fig. 6 is a side view of same. Fig. 7 is an elevation of the segments 20 and 61, to be described, arranged one behind the other and on a large scale; and Fig. 8 is a plan view of the same.

On the bottom plated-of the machine and securely fastened thereto rests a smaller plate 2, on which is securely arranged a bearmg-plate 3. This plate 3 is provided with rectangular openings 4 for the reception of keys 5 and is also rovided with recesses 7 for the reception of eys 6.

The keys 5 serve only for the manipulation of adding, whereas keys 5 and 6 together are used infl the performance of multiplying. The lower edges of the openings 4. and recesses 7 Jareknife-sha ed, as shown artly in full and partly in otted lines in ig. 1.

The keys 5 and 6 rest upon these knife shaped edges.

Springs 9 are provided to draw all the keys downupon arresting-rails 10. It is to beremarked that the key 5 the knob of which carries the number (2 and the key-6 ear rying number 1 are shorter than all other keys, so that only the springs 9 can be hooked into them that is-to say, these two keys cannot come into engagement with the downwardly curved longitudinal edges of plates 13 and 14, which are rotatable on axles 15, sup orted by the right and left side walls 16 0f t e machine. Springs 17 and 18 are that the inner effective arms of the succes-.

sive keys '5 and 6 are made gradually longer, proceeding from the left to the right side of the machinefthat is to say, the downward movement of the knobs of keys 5 and also the keys 6 is throughout alike, but the upward movements of the inner ends of keys 5 and. 6 are different in such a mannerthat if I key 5. carrying the number 1. is pressed down the free effective end of its inner arm makes an upward movement of. the measure 1, while, for instance, the inner arm of the key carrying number 5 makes an upward movement of the measure 5, and, for afurther instance, the arm of keyvQ rises to the measure of 9. In accordance with these different upward movements of the inner effective arms of the keys 5 and 6 the plates 13' and 14 are differently rotated 'on their axles 15. Plate 13 is by'means of a link '19 connected to, a toothed segmentwhich is loosely rotatable on a shaft 21, securely jour naled in the side walls 16 of the machine. The se ent 20 is in en agement with the toothe wheel 22, loose yrotatable on a shaft 23, also with its ends journaled in the walls 16. At the left side of wheel 22 there is provided a ratchet-wheel 24, securely connected to shaft 32.. A pawl 25 upon rotatably-connected wheel 22 is in engagement with said ratchet-wheel 24, carries another toothed wheel 26, slidable in a longitudinal direction on shaft-23. This walls '16, (but riot shown) and wheel 26 follows every rotating movement of said shaft.

Wheel 26 is located between the two tongues of a fork 27, carried by-a pin passing through the slot 29 of a guide-p1ece 30 and having at the outer side ofthe machine a knob 28. By means of this knobthe fork 27'and wheel 26 can be moved in both directions. To both sides, of the fork 27 are connected the ends of a chain 31, passing over rollers 32, 33, and 34:, the axles of which are supported by the front portion 8 of'the cas- The shaft 23 shaft can rotate in bearings provided in the IOO . provided witl1,an i ndicator75, showingexactly the position of wheel .26. ers 32 and 33 are loosely rotatable'on their axles. Wheel 34, however, is rigir'lly colnnected to its-axle 38. .vlj1ich itself loosely rotatable in a bearing-connected to front -portion 8 of the casing. ZixleJiS carries rigidly thereon a ratchet-wheel 35, with which a pawl 36', conncctjedtoa lever 37, is in ene g t. Said lever. is l osely carried by shaft. 38, and its swinging movement is limited bypins 39,1fastened to'front portion 8 of the c-tsing.

, The number .40 denotes a shaft rotatablyresting in, the side walls 16 of the machine. This shaft 40, carries a series of numberwheels 42,jlo,ose ly rotatable upon it. 7 By aneans of suitable collars 76 (indicated in Fig.2 at both sides of tha series of numberwheels) these latter areprevented from axial movement along shaft 40.

; Each number-wheel carries at its circumferenc'e the ,ten numbers, 0 to 9, as shown in Fig. 3.; Efl lh number-wheelcarries, further, a radial flange which is provided with ten. recesses 43,.which, one after the other, icoine'into engagement with the teeth ofthe wheel 26, as will clearly be seen from Fig. 1. I

Atthc. rightside Qfeach number-wheel thereisfprovided a flatspring 47, Fig. 1, said spring being rigidlysecnred to shaft 40, which latter can be rotated by means of a knob 41, Fig; 2,- The direction of all springs is exact-l) the same. .When shaftAO is rotated contrary .to the direction, of the arrow 76, all springs,47 ,o0n1e intoiengagenient with the recess 48, provided'at the right side face of each num er-wheel... his recess 48 ofcach wheel is wedge-shaped in, circumferential direction, so that the springs 47 rotate the Wheels contrary vto arrow 76,, but slide inctfectivcly. oiit .of therecesses ifiif shaft 40 is rotatedin direction of the arrow 76. By-means ofthe spring 48 and rotation of shaft .4llcontrary to direction of arrow 76 all number-wheels can be rotated simultaneously-Quntil all numbers appear at the open- .ings'TZF'm l. AS soon-as this result is obtained Sl1L t,-4,(), and with it, the swings 4 7;, is ,rotated, in the direction of arrows 76 until thespr'ingsAtT arrive at wires 46, which are securely attached to the cover portion .45, offthe. casing of the machine. 'lhese wires we e arranged in a less space than the body ofcthesprings 47, so that the wires can enter into vthe space remaining between springs 47 and the number-wheel to which thesprings belong. When the springs have arrived at, the wire 46 and are then rotated somewhatfarther, they are pushed off, so that their effective ends are moved out of engagelne" with ,the'recesses 48. Springs 44 are providedtoiprevcnt the wheels 42 from being rotated in the direction of arrow 76 by the The rollssaeeo friction produced by the pressure action of the springs 47. As shown in Fig. 1, 'the springs 44 arciin engagement with the one recess 43 of each wheel 42.

Behind the number-wheel there is provided a shaft 49, immovably rotating in and connected to the side walls 16 of the machine.

on this shaft 49 are rotatably arranged loosely-nwunted levers 50 by springs51, which airel ie pt in the position shown in, Fig. 1. To each lever 56 is connccted a pawl 53, which by a spring secured to lever 50 is normally held in the position shown in 1, out of which it cannot be rotated to the right.

Each lever 50 is arranged between two wheels 42, The pawl 43, however, is arranged opposite to the tlangeof the left adjacent wheel, if looking at the machine from the standpoint of the operator. At the left side of every wheel 42 is provided a pin 52, and during the rotation of every wheel 42 as soon as its number Y9? passes the openings 72 in the direction of arrow 76 the pin 52 of the next higher number would now appear.

Within the lower part of the machine is a shaft 54, carrying rotatably thereon a toothed wheel 55, Figs. 1 and 3. At the left side of this wheel is a ratcheiqvhecl 56, Which is rigidly secured to shaft 54. With this ratchet-wheel a pawl, Fig. 1, is in engagement, which by means of a pin is connected to the toothed wheel 55. At the right side of this toothed wheel 55 the shaft 54 'carries a thumb wheel 57, which is also rigidly secured to it. Toothcd wheel 55 is in engagement with a toothed sector 58, loosely rotatable on a shaft 59, which is securely attached to the side wall 16 of the machine. A short arm of the toothed sector 58 is connected to plate 14 by means of a link 60.

On the shaft 21, which loosely carries the sector'20, already mentioned, there is pro vid ed another sector 61, the general shape of which and the number of its teeth exactly correspond with shape and teeth of sector 20.

Adjacent to wheel of shaft 23 is provided another toothed wheel 66 of exactly the same dimensions as wheel 22 and also loosely rotatable on shaft At theright side of Wheel 66, Fig/3, shaft 23 carries a ratchet-wheel 67, which is in engagement with the pawl attached to wheel 66.

Ratchet-wheel 67'is also immovable on-shaft 23. The arrangement of the ratchet-wheels 24 and 67, Figs. 1 and 3, is such that shaft 23 by the movement of the segments 20 and 61 is rotated in the same direction as section 68.

The sectors 20 and 68. are different in two particulars namely, sector 20 carries a pin 75,rigidly attached thereto, as shownin Figs; 1 and 3, which pin rests on the upper edge of segnient'til, so that ifsegment 20 is moved downward sector 61 is also forced to follow.

Eurthcr, in distinction to'segment 20, the segment 61 has a short lever extending behind and carrying a'roller 63, normally in contact with-the thumb of wheel57. The lever 62 of the segment 61 carries a flat spring 65, bent around the boss of segment 61 and seevery upward movementof segment 20.

The action of'the machine is as follows: The numbers 4583, 395, and 5476 are to be added, giving the sum 10454, as an example. First of all, wheels 42 are r0 tated by means of knob 41 until all numbers 0 appear at opening 72. Thenlever 3 of the lower series 5 of the keys is pushed down, thereby lifting plate 13 by three units, which movement is exactly in the same degree transmitted to the first number-Wheel 42 by means of se ment 20, wheel 22, pawl 25, ratchet-whee 24, shaft 23, and wheel 26. In the opening 72 appears number 3 at the units-wheel 45-, which is the one farthest to the right in'Fig. 2. Then the'key. 5 of the lower row of keys is pushed down, which thereby lifts the plate 13 by five units, in consequence of which the units-wheel 45 is turned farther by five numbers, so that now number 8 appears within opening 72. Now key 6 of .the lower row 5 of keys is pushed down, thereby in the same manner rotating the units-wheel 45-farther' by six steps or numbers. As the result is 14, and therefore surpasses the value9, pin 52 of the units-wheel has actuated its lever 50, so that the pawl 53 of this latter rotates the second wheel 42 farther by one step, so that at this second wheel the number 1 appears in opening 72. As the sum of eight thereby moving wheel26 to the left, so that wheel 26 comes into engagement with the flange of the second wheel 42. Now in just the same manner one after the other the keys 8, 9, and 7 of the lower row 5 are pushed down. As the sum of these numbers is twenty-four, and as the second wheel 24 already shows number 1,"- it follows that the second wheel 45 will be turned until the number 5 appears. In the mean time, however, pin 52 of the second wheel 42 has a second time actuated the second lever 50, and consequently the third wheel 42 has rotated forward by two steps and number appears 7 5 at the opening 72 on'the third wheel 42.

For the purpose of adding the third verti cal row 5, 3, and 4, wheel 26 is again moved one step to the left by means of lever 37 Having thereupon added the last three mentioned numbers, the wheel 26 is again moved forward so that it comes in engagement With the fourth-wheel 45, and after numbers 4 and '5 have been added by actuating the corresponding levers of the lower lever-row 8 5 the sum of 10454 will appear Within the bpening 7.2.

As an example in regards the process of the multiplication, assume, for instance, eightye three is to be multiplied by ninety-five. This 'takes place in the following manner: The example is to multiply eighty-three by ninetyfive, wherein may be written below 83. At first five of ninety-five is multie plied by three of eighty-three, giving the re- 5 sult 15? Then five of ninety-five 1s multi plied by eighty of eighty-three, giving the re sult 400. Then ninety of ninety-five is multipliedby three of eighty-three, giving 270, and, finally, ninety of ninety-five is multiplied by eighty of eighty-three, giving 7200. All these single products are automatically added by the machine, giving 7885.

In this machine the process of multiplying re 5 is accomplished by repeated addition. To multiply, for instance, eighty-three by nine: ty-iive the machine is manipulated as follows: The number-wheels are first rotated by means of knob 41 until the numbers 0,ap 11o pear at opening72. Wheel 26 is then ad justed so that it meshes with the units-wheel 42. Then key 5 of thelower row of keys is pushed down, rotating the units-wheel 42 by five steps, but at the same time, by means-of 1 1' 5 the spring 73, lifting the se ment 61 byexactly the same amount. 'le the writer lifts his finger on key 5 of the lower row he presses down with the finger of hisother hand the key 3 ofthe upper row 6 of kevs. In I 20 consequence thereof the plate 14 is lifted by two (not threelsteps, at same time rotating thumb-wheel 57 by means of the segment 58, wheels 55 and 56, and shaft 45 by two steps. As'the segment 61 is lifted by the 5 spring of segment 20 by five steps, it could only oscillate in both directions by live steps during the time both said. thumb-wheels 57 run past the roller 63 of lever 62 of segment 61. As the units-wheel 42 was at first ro- 1 p ber i "that is to say, both wheels together show the number 15. As only the unitswheel has been rotated more than one time,

its lever 50 has actuated and rotated-the secend number-wheel 42 one step forward, and the obtained result must be 15. New, wheel 26 is to be moved farther until it comes in engagement with the toothed flange of-the second number-wheelthat is, the tens wheel. Again, key 5 of the lower key-row 5 is pressed down. mains in down position key 8 of .the upper row -6 is pressed down, causing thereby seven oscillations of segment 61, so that the second wheel 42 is rotated seven times by five steps that is to say, the second Wheel 42 was one time rotated by five steps by means of key 5 of the lower row, and then seven times by five steps by means of key 8 of the upper row, and that amounts to eight times five steps altogether. As the second wheel 42 now shows the number l and its lever 50 was afterward operated tour times, the result 415 must appear the opening 72, because five multiplied by eight are forty, and as the sec end number-wheel 42 represents the value ten the effect is the same as if live is multiplied by eight, equal'to four hundred. Adding.

to these four numbers the value seventyfive, already obtained by the first wheel 42, it is evident that the sum 415 must appear. Now, the number eighty-three is to be multiplied by number nineof number ninety-five. As the number nine stands the second row, taken in vertical direction, because nine represents ninety, wheel 26 must be in engagement with the second Wheel 42 but as it already stands in this position no manipulation of it is required in the selected example. Again, first of all, lever 9 of the lower row 5 of keys is pressed down, and while still being in this position lever 3 of he upper row 6 of keys is pressed down, causing the second wheel 42, which was already turned by nine steps, to be again ro tated by nine steps. The result is twentyseven, or, more exactly, two hundred and seventy, .which the machine immediately adds to the sum of four hundred and fifteen, so that the result of 685 appears in the opening 72. Now the number 8, repre senting8()., is finally multiplied by number 9, which. represents 90, as mentioned, whereby the definitive final result is obtained. For this purpose wheel 26 is to be moved into engagement ,w-it-h the third wheel 49, because the result ,of eighty multiplied by ninety lies within the thou- Then, while this key 5 reseason tical number row, because lever 50 of the third wheel was seven times actuated, and, the sinn of 7885 autoinaticallyappears slot 72 of'th-e machine.

Instead of that construction of the her-wheels shown b Figs. 1 to 4, which the 'same are provi :ed with a radial flange, the modified construction shown Figs. 5 and 6 may be employed. With this modified construction the wheels 26 are of the diameter of the flangeof the number-wheels shown in Figs. 1 to 4, and by this advantage is obtained that the numbers when'passing the slot 72 or appearing in it he immediatelbelow said slot and are there-by easier to As the number-wheels in Fi s. 5 and (6 form themselves a toothed wheel, a separate flange cutout for the teeth in wheel26 is not necessary, and consequently wheels 26 may be adjusted directly or centrally in front of the respective number-wheels, as shown in Fig. 5.

The machine can be employed While standing on any usual desk as used in merchant- ,ofiices, but more preferablyit is arranged before the table and so low that its cover 45 1 may project slightly beyond the upper surface of the table, allowing the writer having the books in convenient position for or from which he performs any calculation required.

For this purpose .a plate 6.9 may be provided by means of a hinge 71, connected to the easing of the machine.and, for instance, being provided with flat indie-rubber bells 7-0 by vacuum to be pressed down onto the surface of the table and securing thereby the whole machine to the table.

Having now described my invention, what I claim as new, and desire to secure by Let ters Patent, i's

1. In an adding-machine, a set'of keys arranged at an angle to the axis of a series of number-wheels, the inner ends of said keys being of gradually-increased length according to the stroke prescribed for each of them, combined with a plate supported rotatably and having a straight longitudinal edge resting on said inner ends of the keys, a looselyrotatable toothed segment, a link connecting the segment to Siild plate, a shaft, .a toothed wheel on the shaft engaging said segment, a

pawl on the toothed wheel engaging a scrrated wheel fixed to said shaft, .a toothedwheel arranged to slide upon said shaft, means for moving such lastmentioned toothed wheel along its shaft, a series of toothed niunber-wheels loosely rotatable on outer en a shaft such number-wheels being arranged to come one after the other in engagement with the said slidable toothed Wheel, means for simultaneously turning the entire series of number-wheels to their zero position, and means for rotating each following Wheel at the completion of the rotation of the preceding wheel, substantially as described.

2. In an adding-machine, a set of keys arranged at an angle at the axis of a series of number-wheels, the inner ends of saidkeys being of gradually-increased length according to the stroke prescribed for each of them, combined with a plate supported rotatably and having a straight longitudinal edge resting on said inner ends of the keys, a looselyrotatable toothed segment, link connectin the segment to said plate, a shaft, a toothe wheel on'the shaft engaging said segment, a pawl carried by the toothed wheel engaging a serrated wheel fixed to said shaft, a toothed wheel arranged to slide upon said shaft, a fork having such lastmentioned toothed wheel. between its prongs, a guide carrying the fork, an endless chain, pulleys supporting said chain, a shaft resting rotatably in a hearing and fixedly carrying at its end one of the said 'pulle s, a serrated wheel secured to the. of the shaft, a lever rotatably' mounted on the pulleys-shaft and in engagement with the serrated wheel, a series of toothed number-Wheels loosely rotatable on a shaft such number-wheels being arranged to come one after the other in engagement with the said slidable toothed wheel, means for simultaneously turning the entire series of number-wheels into their zero position,-

and means for rotati each following wheel at the completion of t i e rotation of the precedin wheel, substantiallylas described.

3. 11 an adding-machine, a set of keys arranged at anangl'e to the axis of a series of number-wheels the inner ends of said keys being of gradually-increased length accord ing to the stroke prescribed for each of them,

combined with a late supported rotatably' and provided wit a straight longitudinal edge resting on said inner ends of the keys, a loosely-rotatable tooth-segment, a link con- 'necting the segment to said plate,-a shaft, a

toothed wheel on said. shaft engaging said segment, a pawl carried by its toothed wheel engaging a serrated wheelfixed to said shaft, a toothed wheel arranged to slide upon saidshaft, means for moving such toothed wheel along its shaft, a series of.v loose rotatable toothed number-wheels such number-wheels being arranged to come one after the-other in enga ement with the said slidable toothed ported at entangle to theaxis ofthe said whee means-for simultaneouslyturning thecording to a prescribed stroke, a second plate supported rotatably and having a straight longitudinal edge resting on the inner ends of toothed segment; a link connecting the second plate with the second toothed sector, 2.

the said second series of keys, a second shaft, carrying loosely rotatable thereon a toothed Wheel, a aWl on the last-mentioned toothed wheel a apted to engage a serrated .Wheel fixed to said shaft, a thumb-wheel rigidly connected to the same shaft, a third toothed sector rotatably mounted on a shaft, and having a rear arm, a roller for said arm adapted to ,come in engagement withthe thumbs of the said thumb-wheel, a toothed wheel engagement with the third toothed sector and carrying a pawl adapted to engage a serrated wheel, a serrated wheel secured'to the shaft carrying slidably thereon the toothed driving-wheel for the series of toothed number-wheels, and a pin and a spring both secured" to the first toothed segment suchv spring being adapted to push the third segment against the said pin, substantially as i described.

,4. In an addin -machine, a set of keys arranged at an an le to't'he axis ofja series of number-wheels tieinner endsof the succes sive keys being of gradually-increased length according to the stroke prescribed for each of them, combined with a plate supported rota- 1 tably and having a straight lon itudinal edge 'resting on said inner ends 0 the. keys, a

loosely-rotatable toothed segment, a link connecting the said segment to said plate, a shaft, a toothed .wheel on the shaft enga '11" said segment, a pawl on the toothed w eel engaging a serrated wheel fixed to said shaft, .a toothedwheel arranged to slide upon said shaft, a fork to move such toothed wheel, a

guide carrying the fork, an endless chain to move the fork, pulleys supportin said chain, a shaft resting rotatably in a earing and carrying at its inner end fixed thereto one ofthe said pulleys,,a serrated wheel fixed to the other end of the shaft, a lever rotatably mounted on the pulley-shaft andin engagement with the serrated wheel, a. series of toothed number-wheels loosely-rotatable on a shaft such number-wheels being arranged to come one after the other in engagement with the said slidable toothedwheel, means for simultaneously turningthe entire series of number-wheels into their zero position, means for rotating each followin wheel at the completion of the rotation of t 1e preceding wheel, a second set of keys arranged-at an angleto the axis of the said numbenwheels and having their inner ends of gradually increasing length according to a prescribed stroke,'asecond late supported rotatably and provided: wit; a straight longitudinal edgeirestingon. the inner ends of the said a link connecting the second plate with the second toothed sector,

shaft an the thumbs of the said thur'nh second series of keys, a second toothedjsector;

- a shaft, ca'rryin loosely rotatable thereon a toothed Whee l having al awl, a serrated Wheel fixed to said d with which the pawl en ages, a thumb-wheel rigidly connected to the same shaft, a third toothed sector rotatab'l y mounted and haying a rear arm provided y vith is roller adapted to come in engagement with Wheel, a toothed Wheel in engagement with the third toothed sector and carrying Ia; pawl, a 8811- reted Wheel'secured to the shaft which carries slidehly thereon the toothed drivingwheel for the series of toothed nurnberwheels, and

apin and a spring both secured to the first toothed segment such spring being adapted to push the third segment against the said pin, substantially as described.

In Witness whereof I subscribe my signa- 

